When do additional quantum noises affect controller performance?

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    Abstract

    The introduction of quantum noise in a system is necessary for realizing it as physical quantum system. In general, quantum noise can be detrimental to the performance of a coherent quantum feedback control system. This paper gives a necessary and sufficient condition for when a quantum system corresponding to a given Linear Time Invariant (LTI) controller can be made physically realizable in the presence of both direct feedthrough quantum vacuum noise and additional quantum vacuum noise such that the additional quantum noise has no effect on the controller output. Furthermore, an example is presented to illustrate our result.

    Original languageEnglish
    Title of host publication2020 59th IEEE Conference on Decision and Control, CDC 2020
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages3855-3859
    Number of pages5
    ISBN (Electronic)9781728174471
    DOIs
    Publication statusPublished - 14 Dec 2020
    Event59th IEEE Conference on Decision and Control, CDC 2020 - Virtual, Jeju Island, Korea, Republic of
    Duration: 14 Dec 202018 Dec 2020

    Publication series

    NameProceedings of the IEEE Conference on Decision and Control
    Volume2020-December
    ISSN (Print)0743-1546
    ISSN (Electronic)2576-2370

    Conference

    Conference59th IEEE Conference on Decision and Control, CDC 2020
    Country/TerritoryKorea, Republic of
    CityVirtual, Jeju Island
    Period14/12/2018/12/20

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